.demo-logo-vertical {
    color: #fff;
    font-size: 18px;
    margin: 10px;
    text-align: center;
    line-height: 38px;
    background-color: rgba(255, 255, 255, 0.3);
}

.side-menu {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.side-menu .side-menu-item {
    flex: 1;
    overflow: auto;
}

/* 不同浏览器 - 滚动条的样式 */
::-webkit-scrollbar {
    width: 5px;
    height: 5px;
    position: absolute;
}

::-webkit-scrollbar-thumb {
    background-color: #1890ff;
}

::-webkit-scrollbar-track {
    background-color: #ddd;
}